farfli | faa56930985437ee77a1045618fbd1454dec4b80ff7b6b1a7da4c4dcdefb0486

Analysis

max time kernel
148s
max time network
147s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260911-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
24/10/2026, 16:22

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General

Target
2026-10-22_39a0dd2bf774bc0afe9646c18f82eb53_coinminer_elex_wannacry.exe
Size 234KB
Sample261024-tvb46afc57
SHA256 faa56930985437ee77a1045618fbd1454dec4b80ff7b6b1a7da4c4dcdefb0486
MD5 39a0dd2bf774bc0afe9646c18f82eb53
SHA1 d2b8991114416008d6fea44f2d3da7bfbb22205d
SHA512 9633d112bea54ee5091c2a2a350f6fb03cb56ef2e8bc645334c3764f9f19d3a8abb0decee621e5db0ad2a2ff0adb4b739c1fa16cbf4ad7e91effe31e4fdf296a
SSDEEP 6144:eMgmYA/npA6SUqfjKfr4QdsICWkZ3h1SLCDFqnetKSog:tgmYA/nsYf8QdsINkZ6CQetFd
TLSH
T19E34F18136A5CD77F0221B7E4D7B163B8536BE651B00B09BD3C4AD4FB431AE46E2E209
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

backdoor bootkit defense_evasion discovery execution farfli gh0strat persistence rat spyware stealer

Malware Config

Extracted

Family

gh0strat

98.126.40.18:3204
http://98.126.40.19:805/index.php
http://98.126.40.20:803/

Attributes

user_agent
Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C))

Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.0)

Signatures

Family: Farfli
Farfli is a Windows backdoor written in C++.
backdoor farfli
Family: Gh0strat
Gh0st RAT is a remote access tool (RAT) with its source code public and it has been used by multiple Chinese groups.
rat gh0strat

Detects Farfli Backdoor 2 IoCs

resource	yara_rule
behavioral2/memory/3264-11-0x0000000010000000-0x000000001006D000-memory.dmp	family_farfli
behavioral2/memory/3264-14-0x0000000010000000-0x000000001006D000-memory.dmp	family_farfli

Detects executables containing base64 encoded User Agent 2 IoCs

resource	yara_rule
behavioral2/memory/3264-11-0x0000000010000000-0x000000001006D000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/3264-14-0x0000000010000000-0x000000001006D000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

UPX dump on OEP (original entry point) 4 IoCs

resource	yara_rule
behavioral2/memory/4928-0-0x0000000000400000-0x0000000000468000-memory.dmp	UPX
behavioral2/memory/4928-2-0x0000000000400000-0x0000000000468000-memory.dmp	UPX
behavioral2/files/0x000500000000053e-3.dat	UPX
behavioral2/memory/4672-7-0x0000000000400000-0x0000000000468000-memory.dmp	UPX

Deletes itself 1 TTPs 1 IoCs

defense_evasion

File Deletion

T1070.004

pid	Process
4672	diejlq.exe

Executes dropped EXE 2 IoCs

pid	Process
4672	diejlq.exe
3264	bkhhh.exe

Loads dropped DLL 1 IoCs

pid	Process
3264	bkhhh.exe

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000\Software\Microsoft\Windows\CurrentVersion\Run\it = "c:\\Program Files\\nabti\\bkhhh.exe \"c:\\Program Files\\nabti\\bkhhh.dll\",Interface"	bkhhh.exe

Enumerates connected drives 3 TTPs 23 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\a:	bkhhh.exe
File opened (read-only)	\??\d:	bkhhh.exe
File opened (read-only)	\??\k:	bkhhh.exe
File opened (read-only)	\??\m:	bkhhh.exe
File opened (read-only)	\??\y:	bkhhh.exe
File opened (read-only)	\??\z:	bkhhh.exe
File opened (read-only)	\??\g:	bkhhh.exe
File opened (read-only)	\??\h:	bkhhh.exe
File opened (read-only)	\??\i:	bkhhh.exe
File opened (read-only)	\??\l:	bkhhh.exe
File opened (read-only)	\??\n:	bkhhh.exe
File opened (read-only)	\??\p:	bkhhh.exe
File opened (read-only)	\??\q:	bkhhh.exe
File opened (read-only)	\??\r:	bkhhh.exe
File opened (read-only)	\??\b:	bkhhh.exe
File opened (read-only)	\??\o:	bkhhh.exe
File opened (read-only)	\??\s:	bkhhh.exe
File opened (read-only)	\??\u:	bkhhh.exe
File opened (read-only)	\??\w:	bkhhh.exe
File opened (read-only)	\??\x:	bkhhh.exe
File opened (read-only)	\??\j:	bkhhh.exe
File opened (read-only)	\??\t:	bkhhh.exe
File opened (read-only)	\??\v:	bkhhh.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PHYSICALDRIVE0	bkhhh.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\nabti	diejlq.exe
File created	\??\c:\Program Files\nabti\bkhhh.dll	diejlq.exe
File created	\??\c:\Program Files\nabti\bkhhh.exe	diejlq.exe

Executes a command shell one-liner 1 TTPs 1 IoCs

Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

execution

Windows Command Shell

T1059.003

pid	Process
4160	cmd.exe

Reads the TCP/IP host and domain name from the registry 1 TTPs 1 IoCs

The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

discovery

System Network Configuration Discovery

T1016

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	bkhhh.exe

System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bkhhh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-10-22_39a0dd2bf774bc0afe9646c18f82eb53_coinminer_elex_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	diejlq.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
4160	cmd.exe
896	PING.EXE

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	bkhhh.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	bkhhh.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
896	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3264	bkhhh.exe
3264	bkhhh.exe
3264	bkhhh.exe
3264	bkhhh.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3264	bkhhh.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4928	2026-10-22_39a0dd2bf774bc0afe9646c18f82eb53_coinminer_elex_wannacry.exe
4672	diejlq.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4928 wrote to memory of 4160	4928	2026-10-22_39a0dd2bf774bc0afe9646c18f82eb53_coinminer_elex_wannacry.exe	91
PID 4160 wrote to memory of 896	4160	cmd.exe	93
PID 4160 wrote to memory of 4672	4160	cmd.exe	94
PID 4672 wrote to memory of 3264	4672	diejlq.exe	95

C:\Users\Admin\AppData\Local\Temp\2026-10-22_39a0dd2bf774bc0afe9646c18f82eb53_coinminer_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-10-22_39a0dd2bf774bc0afe9646c18f82eb53_coinminer_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4928
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\diejlq.exe "C:\Users\Admin\AppData\Local\Temp\2026-10-22_39a0dd2bf774bc0afe9646c18f82eb53_coinminer_elex_wannacry.exe"
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:4160
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 2
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:896
- - C:\Users\Admin\AppData\Local\Temp\diejlq.exe
    C:\Users\Admin\AppData\Local\Temp\\diejlq.exe "C:\Users\Admin\AppData\Local\Temp\2026-10-22_39a0dd2bf774bc0afe9646c18f82eb53_coinminer_elex_wannacry.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - Drops file in Program Files directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4672
  - - \??\c:\Program Files\nabti\bkhhh.exe
      "c:\Program Files\nabti\bkhhh.exe" "c:\Program Files\nabti\bkhhh.dll",Interface C:\Users\Admin\AppData\Local\Temp\diejlq.exe
      4⤵
      Executes dropped EXE
      Loads dropped DLL
      Adds Run key to start application
      Enumerates connected drives
      Writes to the Master Boot Record (MBR)
      Reads the TCP/IP host and domain name from the registry
      System Location Discovery: System Language Discovery
      Checks processor information in registry
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:3264

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k GPSvcGroup
1⤵
PID:5520

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Windows Command Shell

T1059.003

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Pre-OS Boot

T1542

Bootkit

T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Indicator Removal

T1070

File Deletion

T1070.004

Modify Registry

T1112

Pre-OS Boot

T1542

Bootkit

T1542.003

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

Remote System Discovery

T1018

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

bkhhh.exe

Path C:\Program Files\nabti\bkhhh.exe
Size 51KB
SHA256 ce6bb7eddc83762c708d4a41709ae00371dbdc09b2a380f28fa60b1edf917473
MD5 2e068ce2770fde8d1af4cb114b98df1f
SHA1 b6f9c2775babb025b22f915c3047aa627d07c312
SHA512 998d695eb56375e63df7db16740b89deb2cf630ccbead8bcf84a921ec6f4a4f9aef2755b703f7190f332b2008ebcc949363bcf8f392d7d07246c255b5073ed35
SSDEEP 1536:6G9yoVEpHP29I3fbcJboSUge5N+CnC/maz9Rh:8pv2mbcJboce58wvOR
TLSH
T137336C236A0A49B3DFE231780A9D7232526DD862075541F7A61057EAFD243E2EE743CF
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

diejlq.exe

Path C:\Users\Admin\AppData\Local\Temp\diejlq.exe
Size 234KB
SHA256 601cd9c0d453b9a83111f401cf2fc6850a4564c5c0045afce76881f744bc6935
MD5 0abeb068bf108416615f02d08cf67525
SHA1 920a813528c56129ead350aeba80faf78f07ec1c
SHA512 5e5f6b339ca6149ffdcb0e6586b3a617a2e22b11a10623247dfa9d94b18211af9584022b64c9fdb7f7b927db3269ba7c8c13b5ff111fe1abf2e032a30a0dba4e
SSDEEP 6144:eMgmYA/npA6SUqfjKfr4QdsICWkZ3h1SLCDFqnetKSo:tgmYA/nsYf8QdsINkZ6CQetF
TLSH
T16434F18136A5CD77F0221B7D4D7B163B8536BE691B00B09BD3C4AD4FB431AE46E2E209
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

bkhhh.dll

Path \??\c:\Program Files\nabti\bkhhh.dll
Size 168KB
SHA256 86c59f0e7b7b0fadbd8a79557c997e0ebc8dd9c2c354cde854864aa3f8f0701f
MD5 7cb0c36af11ee18873051ddaf915bac3
SHA1 19ec57e6e00dca29cf3958353293aa7c14d4a0b9
SHA512 e6698a9a1cc25b8da76377864190afb6bddc80e52583654f66a3a925ed5fa36c57720ed671ac17dad5b76762bc69d8f627e8bf0eaba57d1eb6184850a015cabc
SSDEEP 3072:S25S8qsPfVoCxEI5GRycgzQkf2+JKC8L1MwwYsg89R5gZM/:SJ8T1xE3ocg9f2nfLnwYsxf2Zk
TLSH
T1CEF312D3EFA649E0C0361BB07C53C10FB8620C6498725B5553D9FEEA3DA668E493D3A1
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/3264-10-0x0000000010000000-0x000000001006D000-memory.dmp

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memory/3264-11-0x0000000010000000-0x000000001006D000-memory.dmp

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memory/3264-14-0x0000000010000000-0x000000001006D000-memory.dmp

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memory/4672-7-0x0000000000400000-0x0000000000468000-memory.dmp

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memory/4928-0-0x0000000000400000-0x0000000000468000-memory.dmp

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memory/4928-2-0x0000000000400000-0x0000000000468000-memory.dmp

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